▎ 摘　　要

NOVELTY - Preparing carboxymethyl cellulose nano fiber film/sodium alginate/graphene composite material comprises preparing carboxymethyl cellulose nanometre fiber film; dispersing the carboxymethylcellulose nano-fiber film in distilled water, adding sodium alginate and graphene, reacting in a constant temperature water bath at 50-70℃, adding epichlorohydrin, adjusting the pH value to 9-11, and reacting at 68-72℃. USE - The carboxymethyl cellulose nanofiber membrane/sodium alginate/graphene composite material is useful in hemostatic materials (claimed). ADVANTAGE - The composite material judges the blood coagulation rate by the absorbance value of the hemoglobin solution, the BCI of the carboxymethyl cellulose nanofiber membrane/sodium alginate/graphene composite material is 40.1%, and has efficient and rapid hemostasis ability DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for carboxymethyl cellulose nanofiber film/sodium alginate/graphene composite material prepared by above method